package com.example.upload.biz.config;


import com.aliyun.oss.ClientBuilderConfiguration;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.common.auth.CredentialsProviderFactory;
import com.aliyun.oss.common.auth.EnvironmentVariableCredentialsProvider;
import com.aliyun.oss.common.comm.SignVersion;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class OssConfig {
    @Bean
    public OSS getOSSClient(OssProperties ossProperties) throws Exception {

        // 从环境变量中获取访问凭证。运行本代码示例之前，请先配置环境变量
        EnvironmentVariableCredentialsProvider credentialsProvider =
                CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // 创建OSSClient实例。
        // 当OSSClient实例不再使用时，调用shutdown方法以释放资源。
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        // 显式声明使用 V4 签名算法
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);
        OSS ossClient = OSSClientBuilder.create()
                .endpoint(ossProperties.getEndpoint())
                .credentialsProvider(credentialsProvider)
                .clientConfiguration(clientBuilderConfiguration)
                .region(ossProperties.getRegion())
                .build();
        ossClient.createBucket(ossProperties.getBucketName());
        return ossClient;
    }
}
